WO2019124369A1

WO2019124369A1 - Rotation restriction mechanism for maintenance

Info

Publication number: WO2019124369A1
Application number: PCT/JP2018/046553
Authority: WO
Inventors: 要藏石原
Original assignee: 株式会社チュウブワークス
Priority date: 2017-12-21
Filing date: 2018-12-18
Publication date: 2019-06-27
Also published as: JP6371461B1; EP3730357A4; JP2019113082A; EP3730357B1; EP3730357A1

Abstract

[Problem] To provide a rotation restriction mechanism which is for maintenance and makes it possible to efficiently perform the task of inserting/removing screws or the like in a device or the like connected to an axle of a vehicle. [Solution] This rotation restriction mechanism 10 for maintenance can be attached to a disk brake 30 and suppresses the rotation of a disk rotor 31, which rotates together with an axle 9, by pressing the disk rotor 31 with a brake pad 33 of a brake caliper 32, the rotation restriction mechanism 10 being characterized by comprising: a connection part 12 that can be connected to a connection member that is provided further inward in the radial direction than the brake caliper 32; and a restriction part 14 that extends outward in the radial direction from the connection part 12 and restricts the rotation of the disk rotor 31 by abutting the brake caliper 32 when the disk rotor 31 rotates.

Description

Rotation regulation device for maintenance

The present invention relates to a rotation control device for maintenance.

Conventionally, when performing maintenance around the axle of a car, the connecting portion between the axle and a differential connected to the axle may be detached and attached. When maintenance is performed, the work such as attachment and detachment described above is performed while the vehicle is lifted by a maintenance lift device or the like.

As a technique related to the present invention, for example, Patent Document 1 includes a differential main body to which axles of left and right drive wheels are respectively connected, and a ring gear attached to the differential main body by a fastening member such as a bolt. A replacement part for differential regulation of an automobile, wherein the driving force of the engine is transmitted to the differential main body through the ring gear, which is formed exchangeably with the differential main body and can be coupled with the ring gear. A replacement part for differential regulation of a motor vehicle is disclosed, characterized in that it comprises a coupling part and a coupling part that non-rotatably couples the respective axles with each other.

JP 2000-274511 A

As described above, when the automobile is lifted by a maintenance lift device or the like at the time of maintenance, if the screw is turned to remove the screw, the axle is idled following this. Therefore, when performing such work, there are a total of two people: a worker for stopping the movement of the axle by applying a brake for stopping the disc brake connected to the axle and a worker for removing the screw. The work efficiency is poor because a worker is required.

An object of the present invention is to provide a rotation regulating device for maintenance, which can efficiently perform attachment and detachment operations of screws and the like such as a device connected to an axle of a car.

The rotation regulating device for maintenance according to the present invention is a rotation regulating device for maintenance that can be mounted on a disk brake that suppresses the rotation of the disk rotor by pressing the disk rotor rotating with the axle with the brake pad of the brake caliper. A connecting portion which is provided radially inward of the brake caliper and which can be connected by being screwed into a screwed connecting member which protrudes from the disc rotor, extends radially outward from the connecting portion, and the disc rotor rotates. Then, there is provided a restricting portion which abuts on the brake caliper to restrict the rotation of the disc rotor, and the disc rotor is provided with the connecting portion in the thickness of the outer peripheral portion in the radial direction on which the brake caliper is provided. It is thinner than the thickness of the inner peripheral part in the radial direction The restricting portion includes an extending portion extending radially outward from the connecting portion, and a leg extending so as to contact the outer peripheral portion from the tip end of the extending portion toward the outer peripheral portion. It is characterized by

Further, in the rotation restricting device for maintenance according to the present invention, the extending portion is a connecting portion side through hole formed at a position corresponding to the connecting portion, and a leg portion side formed at a position corresponding to the leg portion. A through hole is provided, and the connecting portion has a connecting portion side rotation shaft portion inserted into the connecting portion side through hole and rotatably connected, and the leg portion is the leg portion side through hole It is preferable to have the leg part side rotating shaft part inserted in and rotatably connected.

According to the present invention, when the disc rotor rotates, it can contact the brake caliper to regulate the rotation of the disc rotor. In this way, it is possible to carry out detachment work of screws such as a device connected to the axle of a car with only one worker.

It is a figure showing the rotation regulation instrument for maintenance of the embodiment concerning the present invention. In the embodiment which concerns on this invention, it is the schematic which shows the drive system of a motor vehicle. In the embodiment according to the present invention, it is a diagram showing a relationship between a tire of a car and a disc brake. It is a figure which shows a mode that the rotation control instrument for maintenance of embodiment which concerns on this invention was mounted | worn with the disk brake.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the attached drawings. Below, the same numerals are given to the same element in all the drawings, and the overlapping explanation is omitted. Also, in the description in the text, the symbols described earlier are used as necessary.

FIG. 1 is a view showing a rotation regulating device 10 for maintenance. FIG. 2 is a schematic view showing a drive system of the automobile 1. FIG. 3 is a view showing the relationship between the tire portion 6 of the automobile 1 and the disc brake 30. As shown in FIG. FIG. 4 is a view showing the maintenance rotation restricting device 10 attached to the disk brake 30. As shown in FIG.

The rotation regulation device 10 for maintenance is a device used at the time of maintenance of the automobile 1. First, the automobile 1 which is not a component of the rotation regulating device for maintenance 10 but is a component necessary for describing an embodiment according to the present invention will be described.

As shown in FIG. 2, the automobile 1 has an engine 2 which is an internal combustion engine, a clutch 3 for transmitting or blocking the motive power generated from the engine 2, a torque, a rotational speed and a rotational direction transmitted by the clutch 3. And a transmission 4 for transmitting to the propeller shaft 7.

Further, the automobile 1 has a propeller shaft 7 that transmits the power output from the transmission 4 by rotation of the shaft, and a differential device 8 that is a device that detects or divides the difference between the motions of the two parts. , And an axle 9 connected to the left and right tire portions 6 connected to the differential device 8.

The relationship between the axle 9 and the tire portion 6 will be described with reference to FIG. The tire portion 6 is configured by mounting a tire on a wheel portion connected to a disc brake 30 connected to an axle 9. As a result, the axle 9 is rotated by the power transmitted from the engine 2, whereby the automobile 1 can travel by the rotation of the tire portion 6.

The disc brake 30 is a substantially convex rotating body in a side view, as shown in FIG. The disc brake 30 has a function of suppressing the rotation of the disc rotor 31 by holding the disc rotor 31 rotating with the axle 9 with the brake pad 33 of the brake caliper 32.

The disk rotor 31 is configured to include an outer peripheral portion 34 on the radially outer side where the brake caliper 32 is provided, and an inner peripheral portion 36 that is thicker than the outer peripheral portion 34 and in which a step is formed.

The brake caliper 32 covers at least a part of the outer peripheral portion 34, has an arc shape in a plan view as shown in FIG. 4, and has a concave shape sandwiching an end portion of the outer peripheral portion 34 in a side view There is. As shown in FIG. 4, a slight gap is formed between the brake caliper 32 and the inner circumferential portion 36 in an arc shape in plan view.

The inner circumferential portion 36 is provided with a plurality of connecting members 38 connected to a wheel portion (not shown) standing at predetermined intervals. The connection member 38 is configured to include a bolt portion to which a nut portion can be screwed. The disc brake 30 configured in this way depresses the brake on the driver's seat to hold the disc rotor 31 by the brake pad 33 for braking.

The maintenance rotation restricting device 10 is configured to include the connecting portion 12 and the restricting portion 14. The restricting portion 14 extends outward in the radial direction from the connecting portion 12 when mounted on the disk brake 30, and has a function of restricting the rotation of the disk rotor 31 by coming into contact with the brake caliper 32 when the disk rotor 31 rotates.

The restricting portion 14 includes an extending portion 16 extending radially outward from the connecting portion 12 and a leg portion 18 extending so as to contact the outer peripheral portion 34 from the tip end of the extending portion 16 toward the outer peripheral portion 34. The extending portion 16 is a substantially rectangular plate member having rounded ends at both ends and a predetermined thickness.

The extending portion 16 is formed with a connecting portion side through hole 15 formed at a position corresponding to the connecting portion 12 and a leg portion side through hole 17 formed at a position corresponding to the leg portion 18.

The connecting portion 12 is connectable to a connecting member 38 provided on the inner circumferential portion 36. The connecting portion 12 is formed with a through hole through which the connecting member 38 can be inserted, and has a convex portion shape that can be fitted into the connecting portion side through hole 15, and the projecting portion on the connecting portion side It is a member which is fitted in the through hole 15 and has a connecting portion side rotation shaft portion 23 rotatably connected.

The leg 18 is a substantially weight-like member having a leg-side rotation shaft 25 that is inserted into the leg-side through hole 17 and rotatably connected. The leg 18 abuts on the brake caliper 32 when the disc rotor 31 rotates.

As described above, the extension portion 16, the connecting portion 12 and the leg portion 18 are connected in a rotatable state. In addition, the extension portion 16, the connection portion 12 and the leg portion 18 can be made of a material having appropriate strength, and can be made of, for example, stainless steel, but the leg portion 18 corresponds to the brake caliper 32. In view of contact, it may be made of resin or the like.

Subsequently, the operation of the maintenance rotation restricting device 10 configured as described above will be described. As a part of the maintenance work of the automobile 1, it is necessary to remove a screw or the like provided at the connection portion between the axle 9 and the differential device 8.

Conventionally, when trying to turn the screw in a direction to remove the screw, the axle 9 also follows and idles, so the screw can not be removed. In order to make it easy to understand this situation, for example, referring to FIG. 4, there is a connecting member such as a bolt, a nut and the like connected to the axle 9 at the center of the disk rotor 31 Then, the disc rotor 31 and the axle 9 also rotate (idle). Further, even if it is assumed that there is a screw in a portion located in the connecting member 38, it is understood that when the screw is to be loosened, the disc rotor 31 and the axle 9 idle.

It is not impossible to restrict the rotation of the disc rotor 31 by mounting a rod member such as a wrench on the pair of connection members 38 if the screw or the like of the disc rotor 31 is used, but it is necessary to work with one hand. There is a problem that it is difficult to work because In addition, the connecting portion between the axle 9 and the differential 8 at the central portion of the vehicle body of the automobile 1 is constructed by a single worker while the wrench is thus bridged to the connecting member 38 at the end of the vehicle. There was a distance issue to loosen the screw.

Therefore, of the two workers, it was necessary to take charge of turning the screw of the connection part between the axle 9 and the differential 8 and take charge of stepping on the brake to prevent the axle 9 from turning, but maintenance By using the rotation restricting device 10, it can be performed by one worker. The details will be described below.

With the wheel of the tire portion 6 removed to expose the connecting member 38, the leg portion 18 of the rotation regulating device 10 for maintenance is positioned on the outer peripheral portion 34, and one connecting member 38 among the five connecting members 38. After the connection portion 22 of the maintenance rotation restricting device 10 is inserted, the nut portion is tightened and connected. Thereby, as shown in the left view of FIG. 4, the installation of the rotation regulating device for maintenance 10 is completed.

Next, when the screw provided at the connecting portion between the axle 9 and the differential 8 is turned, initially, the disc rotor 31 is also rotated along with the axle 9 following this, as shown in the upper right view of FIG. Thus, the leg 18 abuts on the brake caliper 32.

Here, in the rotation restricting device 10 for maintenance, since the extension portion 16, the connection portion 12 and the leg portion 18 are each rotatable, the leg portion 18 moves to a position where it firmly engages with the brake caliper 32 and the leg is The portion 18 catches on one end of the brake caliper 32.

In this state, the rotation of the disc rotor 31 is restricted even when the screw provided at the connection portion between the axle 9 and the differential 8 is turned, so the axle 9 also does not rotate. Thus, the screw can be loosened and the connection between the axle 9 and the differential 8 can be removed and serviced.

When the screw is tightened to connect the axle 9 and the differential 8 again after maintenance, the disc rotor 31 also rotates in the opposite direction to turn the screw in the opposite direction to the direction in which the screw is loosened. As shown in the figure below, in the brake caliper 32, the one end is in contact with the other end in the opposite direction and is caught.

Since the rotation of the disc rotor 31 is regulated as it is, the axle 9 does not rotate even if the screw is tightened. Therefore, the screw can be screwed firmly. Thus, after the tightening is completed, the nut portion is loosened, the connection portion 12 is removed, and the maintenance rotation restricting device 10 is removed.

As described above, by using the maintenance rotation restricting device 10, the maintenance work which has conventionally been performed by two workers can be performed by one person, and there is an advantage that the work efficiency can be enhanced.

Here, in order to make the drive system of the motor vehicle 1 intelligible, although it demonstrated by the simple structure, of course, it is effective also when the other apparatus is provided. For example, since the axle 9 is configured as a wheel hub (gloss) and a disc brake 30 through a differential gear (differential gear 8) to a hub carrier (knuckles, spindles, bearings), each portion Similarly, since the axles 9 rotate in conjunction with each other when attaching and detaching, the maintenance work can be efficiently performed by one worker by using the rotation regulating device 10 for maintenance.

Reference Signs List 1 automobile, 2 engine, 3 clutch, 4 transmission, 6 tire portion, 7 propeller shaft, 8 differential gear, 9 axle, 10 maintenance rotation restricting device, 12 connecting portion, 14 restricting portion, 15 connecting portion side through hole, DESCRIPTION OF SYMBOLS 16 extension part, 17 leg part side through hole, 18 leg part, 22 connection part, 23 connection part side rotating shaft part, 25 leg part side rotating shaft part, 30 disc brakes, 31 disc rotors, 32 brake calipers, 33 brake pads , 34 outer periphery, 36 inner periphery, 38 connecting member.

Claims

A maintenance rotation restricting device that can be mounted on a disc brake that suppresses the rotation of the disc rotor by pressing the disc rotor rotating with the axle with a brake pad of a brake caliper,
A connecting portion which is provided radially inward of the brake caliper and which can be connected by being screwed to a screwing connecting member which protrudes from the disc rotor;
A restricting portion that extends radially outward from the connecting portion and that abuts against the brake caliper when the disc rotor rotates and restricts the rotation of the disc rotor;
Equipped with
The disk rotor is formed so that the thickness of the outer peripheral portion in the radial direction on which the brake caliper is provided is thinner than the thickness of the inner peripheral portion in the radial direction on which the connecting portion is provided.
The regulatory unit
An extending portion extending radially outward from the connecting portion;
A leg extending so as to contact the outer peripheral portion from the tip end of the extending portion toward the outer peripheral portion;
A rotation regulation device for maintenance characterized by having.
In the maintenance rotation restricting device according to claim 1,
The extension portion has a connecting portion side through hole formed at a position corresponding to the connecting portion, and a leg portion side through hole formed at a position corresponding to the leg portion.
The connection portion has a connection portion side rotation shaft portion which is inserted into the connection portion side through hole and rotatably connected.
The maintenance rotation restricting instrument, wherein the leg portion has a leg portion side rotation shaft portion which is inserted into the leg portion side through hole and rotatably connected.